Garage door with rolled overlapping joint for adjacent panels

ABSTRACT

An overhang door of sectional construction of the type commonly found employed in garages is provided having a rolled overlapping joint formed between adjacent panel sections. The door is composed of at least a pair of panel sections each having a substantially rectangular configuration. Each of the pair of panel sections includes a first roll having a radius of a first dimension formed along and adjacent to the edge of one of the long sides of the panel section and a second roll having a radius of a second dimension formed along and adjacent to the edge of the other of the long sides of the panel section. The second roll of one of the pair of panel sections is operable for receiving therewithin the first roll of the other of the pair of panel sections when the edges of the corresponding long sides of the pair of panel sections are placed in overlapping relation. A first stile means is supported on one of the pair of panel sections at a right angle to the major axis thereof and with one end of the first stile means being located adjacent to the first roll of the panel section. In addition, a second stile means is supported on the other of the pair of panel sections at an angle to the major axis thereof and with one end of the second stile means being located adjacent to the second roll of the panel section. Hinge means are provided including a first hinge portion operatively connected to the aforereferenced one end of the first stile means and a second hinge portion operatively connected to the aforementioned one end of the second stile means operable to establish a joint connection between the pair of panel sections wherein when the first and second hinge portions are moved relative to each other the first roll of the aforereferenced one of the pair of panel sections moves within and relative to the second roll of the other of the pair of panel sections.

United States Patent 11 1 Geoffrey 1 GARAGE DOOR WITH ROLLED OVERLAPPING JOINT FOR ADJACENT PANELS [75] inventor: David Charles Geoffrey, Warren.

Mich.

[73] Assignee: The Stanley Works, New Britain,

Conn.

[22] Filed: Oct. 1, 1973 I21] Appl. No.: 402,580

[52] U.S. Cl 160/235; 160/201 I51] Int. Cl. E06B 3/12 158] Field of Search 160/201, 209, 229. 235

[56] References Cited UNITED STATES PATENTS 2.863.503 12/1958 Stroup 160/201 3.415.304 12/1968 Sawyer 160/235 Primary E.raminerPeter Mr Caun [57] ABSTRACT An overhang door of sectional construction of the type commonly found employed in garages is provided having a rolled overlapping joint formed between adjacent panel sections. The door is composed of at least a pair of panel sections each having a substantially rectangular configuration. Each of the pair of panel sections includes a first roll having a radius of a first June 24, 1975 dimension formed along and adjacent to the edge of one ofthe long sides of the panel section and a second roll having a radius of a second dimension formed along and adjacent to the edge of the other of the long sides of the panel section. The second roll of one of the pair of panel sections is operable for receiving therewithin the first roll of the other of the pair of panel sections when the edges of the corresponding long sides of the pair of panel sections are placed in overlapping relation. A first stile means is supported on one of the pair of panel sections at a right angle to the major axis thereof and with one end of the first stile means being located adjacent to the first roll of the panel section. In addition, a second stile means is supported on the other of the pair of panel sections at an angle to the major axis thereof and with one end of the second stile means being located adjacent to the second roll of the panel section. Hinge means are provided including a first hinge portion operatively connected to the aforereferenced one end of the first stile means and a second hinge portion operatively connected to the aforementioned one end of the second stile means operable to establish a joint connection between the pair of panel sections wherein when the first and second hinge portions are moved relative to each other the first roll of the aforereferenced one of the pair of panel sections moves within and relative to the second roll of the other of the pair of panel sec trons.

9 Claims, 6 Drawing Figures PATENTEBJuu24 ms wig- 1.821

M. 3km

1 GARAGE DOOR WITH ROLLED OVERLAPPING JOINT FOR ADJACENT PANELS BACKGROUND OF THE INVENTION It has long been the conventional practice to employ a swinging or sliding barrier such as a door to open and close an entry. In this connection. there have been provided heretofore a variety of types of doors embodying different forms of construction. In most instances. the doors which have been available heretodatc are characterized by the fact that they are designed to be utilized in conjunction with a specific type of application. For example, the form of door which is probably most familiar to all is the swinging door commonly found employed for purposes of opening and closing the entry into a building, the entry into the various rooms of a house. the entry into different portions of commerciai and/or industrial structures, etc. in addition, there have been provided previously folding doors which are characterized by the fact that the door is formed of material sufficiently resilient to enable the door to be moved to an expanded condition to close an entry and to a collapsed condition to open an entry. When in the collapsed condition, folding doors occupy relatively little of the area of an entry and as such are often employed for purposes of opening and closing the entry to a closet in the house. Yet another form of door which has been provided heretodate is the overhang door most often utilized for opening and closing the entry into an area such as a garage. etc. Such a door is generally supported so as to be movable between a first position wherein the door is positioned substantially perpendicular to the floor of the garage and a second position wherein most, if not all, of the door is disposed in a plane which is substantially parallel to the plane of the floor of the garage The overhang door when positioned in the aforereferenced position thereof functions to close the entry to the garage and when in the second position provides access into the garage by opening the entry thereto.

It is readily obvious from reference thereto that although the structures which comprise the aforedescribed doors are each intended to be employed as a form of door, differences exist therebetween insofar as concerns the nature of their construction as well as the specific manner in which they are used. Generaliy speaking. these differences are dictated basically by the nature of the type of application in which the doors are utilized. Thus. for example, with respect to the form of doors commonly found employed to open and close an entry within a building, i.e., the aforereferenced swinging door. such doors generally are of wooden construction, are provided with a good finish so as to present a pleasant appearance, and are sufficiently sturdy so that when positioned to close the entry and locked in the latter position they are operable to prevent unauthorized passage through the entry unless substantial damage is first done to the door. Doors of the folding type commonly are intended to function merely as a means of blocking off the view of what is present on the other side of the entry. As such, folding doors are generally not required to possess the rigid type of construction which is found embodied in a swinging door. Insofar as concerns overhang doors, since they are most often uti lized to close an open and entry providing access from the outside of a structure to the interior thereof. they must be of a sufficiently durable construction to be capable of resisting exposure to various types of different weather conditions without suffering premature deterioration while at the same time providing reliable performance with minimum need for performing maintenance thereon. in addition. another requirement of overhang doors is that they be constructed so as to enable sections thereof to pivot relative to each other as the door follows an arcuate path in moving between the open and closed positions thereof.

With regard to the latter type of door. a number of different forms thereof have been provided in the prior art heretodate. In general, however. the prior art forms of this type of door have been characterized by the fact that they possess one or more of the following undersirable features. For example, since this type of door is generally of sectional construction. joints are required between adjacent panel sections as a means of interconnecting the latter together to form a single door. In this regard, the joints which have been provided in the prior art doors of this type have presented the possibility for a person to pinch his fingers therein while closing the door. Secondly, since the door is intended to function to open and close the entry from the exterior to the interior of a building, the door must be operable to restrict the entrance of the elements such as wind, water and light into the interior of the building. In this connection, prior art forms of this type of door have not proven to be completely effective when placed in use to provide a sufficiently tight seal between adjacent panel sections of the door. More particularly, such prior art forms of door have been characterized by the fact that they are unable to restrict the aforereferenced elements while still maintaining a mechanical configuration compatible with the radial or rotational relationship of the joint, existing between two adjacent panel sections, under operating conditions. In addition, some prior art doors of this type have been characterized by the fact that they are relatively difficult to assemble and/or install, thereby increasing the cost of manufacture and/or installation thereof. Moreover, the performance of prior art doors of this type in many instances has not proven to be entirely satisfactory insofar as concerns the ease with which the door is capable of being moved between its open and closed positions, the manner in which the panel sections pivot relative to each other, etc.

Accordingly, it is an object of the present invention to provide a novel and improved door of the type comprising a plurality of panel sections and embodying a joint construction operable for connecting the adjacent panel sections thereof together.

It is also an object of the present invention to provide such a door wherein a radial overlapping joint construction is employed which eliminates the possibility of a person pinching his fingers while closing the door.

it is another object of the present invention to provide such a door employing a radial overlapping joint construction which is operable to restrict the passage therethrough of wind. water and light. and which is capable of maintaining a mechanical configuration compatible with the radial relationship of the joint under operating conditions.

A further object of the present invention is to provide such a door having a radial overlapping joint construction which provides all of the advantages of the conventional continuous curl hinge door yet facilitates much easier assembly and provides better performance than the conventional continuous curl hinge door.

Yet another object of the present invention is to provide such a door embodying a plurality of adjacent panel sections interconnected by means of a radial overlapping joint construction which is relatively inexpensive to manufacture and assemble yet is sufficiently durable so as to be capable of providing a relatively long operating life.

SUMMARY OF THE INVENTION It has now been found that the foregoing and related objects can be readily attained in rolled metal door of sectional construction of the type commonly found employed in garages. The door includes at least one panel section having along one edge portion thereof a roll form including a lip portion of arcuate cross-section extending along the aforementioned edge portion, and affording a recess in the inner surface thereof. At least one other panel section is provided having along at least the edge portion thereof adjacent to the one panel section a cooperating shoulder portion of arcuate configuration slidably receiving therein the outer surface of the arcuate lip portion of the aforementioned one panel member whereby the shoulder portion and the lip portion are slidable relative to each other during movement of the door between the opened and closed portions thereof. In addition, hinge means are provided including a first leaf hinge portion mounted on the one panel section adjacent the one edge portion thereof and a second leaf hinge portion mounted on the other panel section adjacent to the aforedescribed one edge portion thereof. The barrel of the hinge means is positioned within the aforereferenced recess provided by the lip portion whereby when the first and second panel sections are moved, the lip portion and the shoulder portion slide relative to each other thereby causing a pivotal movement of the one panel section and the other panel section relative to each other.

In accord with the preferred embodiment of the invention, the one panel section is also provided with a rail portion projecting from the end of the leaf portion spaced from the free edge thereof. The aforedescribed rail portion comprises an extension of the leaf portion extending substantially parallel to the plane of the body of the one panel section. The other panel section is similarly provided with a rail portion projecting from the end of the shoulder portion spaced from the free edge thereof. In addition, the door is provided with first and second stile means. The first stile means is supported on the one panel section at a right angle to the major axis of the latter and with one end of the first stile means located adjacent and fastened to to the aforedescribed leaf portion of the one panel section. The second stile means is supported on the other panel section at a right angle to the major axis of the latter and with one end of the second stile means located adjacent and fastened to to the aforedescribed shoulder portion of the other panel section. The first leaf hinge portion of the hinge means is fastened to the aforementioned one end of the first stile means while the second leaf hinge portion of the hinge means is fastened to the aforesaid one end of the second stile means.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is a perspective view of a door embodying a radial overlapping joint construction in accordance with the present invention:

FIG. 2 is a perspective view on an enlarged scale of a portion of the door of FIG. I illustrating the radial overlapping joint construction employed therein in accordance with the present invention;

FIG. 3 is an end view ofa portion ofthe door of FIG. I illustrating the radial overlapping joint construction employed therein constructed in accordance with the present invention depicted in the assembled condition with parts omitted for purposes of clarity of illustration;

FIG. 4 is an end view ofa portion of the door of FIG. 1 illustrating the radial overlapping joint construction employed therein constructed in accordance with the present invention depicted in the disassembled condition and with parts omitted for purposes of clarity of illustration;

FIG. 5 is an end view ofa portion of the door of FIG. I employing a radial overlapping joint construction constructed in accordance with the present invention, illustrating the method of operation of the radial overlapping joint construction; and

FIG. 6 is a cross-sectional view ofa portion of a panel section of a door employing a radial overlapping joint construction constructed in accordance with the pres ent invention taken substantially along the line 66 in FIG. 2.

DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENT Referring now to the drawings, and more particularly FIG. 1 thereof, there is illustrated therein a door, generally designated by reference numeral 10, employing therein a radial overlapping joint construction constructed in accordance with the present invention. The door l0 as found depicted in FIG. is illustrated therein being employed as an overhanging door of the type commonly utilized for purposes of opening and closing the entry into a garage. It is to be understood however that the door 10 is not limited to the aforedescribed type of application but rather may also be utilized in other types of applications without departing from the essence of the invention. Referring further to FIG. 1 of the drawings, the door 10 as shown therein is mounted for movement between a first position wherein the door 10 is positioned in substantially a vertical plane as viewed with reference to FIG. 1, i.e., in a plane extending substantially perpendicular to the plane of the floor surface of the garage, and a second position (not shown) wherein most, if not all, of the door 10 is disposed in a plane which extends substantially parallel to the plane of the floor surface of the garage. The aforesaid movement of the door 10 is accomplished by means of conventional structure employed in a manner well known to those skilled in the art. lnasmuch as the manner in which the movement of the door 10 is achieved is only indirectly related to the subject matter of the present invention, only a brief description of the aforereferenced structure has been set forth here-inbelow. It is believed however that the aforesaid description is sufficient for purposes of obtaining an understanding of the present invention.

More specifically, the door I0 is mounted for movement between a pair of track members I2 and 14. The

latter members I2 and I4 are each provided with a suitably dimensioned channel (not shown) in which a plurality of rollers 16 are caused to move. The rollers 16 are suitably supported in spaced relation on the door along the opposed edges thereof so as to be positionable in the aforedescribed channels. The door I0 is preferably spring biased by means of a spring means I8, one end (not shown) of which is connected to a fixed support (not shown). The other end of the spring means I8 as seen with reference to FIG. I of the drawings is attached to cord-like number which in turn passes around a pulley 22. Accordingly, when the door 10 occupies the position depicted in FIG. 1 of the drawings, the spring means 18 is extended and such applies a pulling force on the door 10. The latter force however is not sufficient to cause the door 10 to move its substantially horizontal position (not shown). Rather. the door I0 must first be moved to a raised position, as viewed with reference to FIG. 1 of the drawings, wherein the bottom of the door 10 is spaced some suitable distance from the floor surface of the garage. The spring means 18 is selected such that when the bottom of the door 10 reaches the aforedescribed position, the force exerted by the spring means 18 is sufficient to overcome the force represented by the weight of the door 10 such that the door 10 is caused to move the rest of the way to its second, i.e., horizontal position under the influence of the spring means I8. The initial raising of the bottom of the door 10 may be accomplished either by hand or through the use of some form of power assisted means (not shown) of the type commonly found employed for this purpose in the art.

Turning now to FIG. 2 of the drawing. the door 10 as illustrated therein includes at least three panel sections 24, 26 and 28, each connected to the adjacent panel section by means of a radial overlapping joint construction in a manner which will be set forth fully hereinafterv Inasmuch as each of the panel sections 24, 26 and 28 is of similar construction, for purposes of describing the construction thereof it is deemed sufficient to set forth hereinafter a detailed description of only one of the panel sections, i.e., panel section 26.

Panel section 26 is of rolled metal construction having a substantially rectangular configuration as best seen with reference to FIG. 1 ofthe drawings. In accord with the illustrated embodiment of the invention, the panel section 26 is provided intermediate the long sides thereof with a truss 30 which preferably extends the entire length of the panel section 26. Also, the panel section 26 is preferably formed with a plurality of undulations 32 extending vertically as viewed with reference to FIG. 2 of the drawings between the truss 30 and a truss 34. The truss 34 in accord with the illustrated embodiment of the invention is not formed integrally as a part of the panel section 26 in the manner of the truss 30 but rather comprises a separate member having a length which is sufficient to extend the entire length of the panel section 26. In addition the truss 34 is provided with a pair of flange portions 34a and 34b, the latter being employed for purposes of fastening the truss 34 in place on the panel section 26. Any suitable conventional form of securing means may be employed for purposes of mounting the truss 34 on the panel section 26 such as welding. thread fasteners, etc. The trusses 30 and 34 as well as the undulations 32 provide additional rigidity to the panel section 26. Accordingly, if so desired. a greater or lesser number of such strengthening means could be employed with the panel section 26 without departing from the essence of the invention.

Continuing with the description of the panel section 26, the latter as best understood with reference to FIGS. 2, 3 and 4 of the drawings is provided along one edge position thereof with a roll form including a lip portion 36 of arcuate cross-section. The lip portion 36 is formed by reversibly bending upon itself the aforementioned one edge portion of panel section 26. A rail portion 38 projects outwardly from the end of the lip portion 36. The rail portion 38 comprises an extension of the lip portion 36 extending substantially parallel to the plane of the body of the panel section 36. As best seen in FIGS. 3 and 4 of the drawings, the tip 38a of the rail portion 38 is reversibly bent inwardly so as to be positioned in engagement with the rail portion 38. Moreover, it can be seen from reference to FIGS. 2, 3 and 4 of the drawings that a recess 40 is provided along the aforementioned one edge portion of the panel section 26 by virtue of the aforedescribed construction of the lip portion 36 and shoulder portion 38.

Another edge portion of the panel section 26 is provided with a shoulder portion 42 of arcuate configuration. The shoulder portion 42 is suitably dimensioned so as to be capable of being slidably seated within the lip portion 36 of panel section 26 in the manner depicted in FIG. 2 of the drawings for a purpose yet to be described. The shoulder portion 42 terminates in a rail portion 44 which projects outwardly therefrom. The rail portion 44 extends substantially parallel to the plane of the body of the panel section 26 and moreover is positioned in substantially the same plane as the aforedescribed rail portion 38. IN a manner similar to that of the rail portion 38, the tip 44a of the rail portion 44 is reversibly bent inwardly so as to be positioned in engagement with the rail portion 44. In accord with the illustrated embodiment of the invention, a channelshaped cutout portion 46 is preferably provided adjacent to but in spaced relation to the shoulder portion 42.

Referring to FIG. 1 of the drawings, a plurality of stiles 48 are preferably provided at suitably spaced locations along the length of the panel section 26. Similarly, each of the panel sections 24 and 28 are likewise provided with a plurality of stiles 50 and 52, respectively. As depicted in FIG. 2, each of the stiles 48 has a length which is sufficient to extend substantially the width of the panel section 26. More particularly, the stile 48 has a configuration which conforms to that of the inner surface of the panel section 26 whereby the stile 48 is an engagement with the truss 30 and truss 34. The stile 48 is preferably provided with a longitudinally extending slot 54 which extends substantially the length of the stile 48. In addition, a pair of cutouts 56 and 58 are preferably provided intermediate the ends of the stile 48 and suitably spaced relative to each other such that when the stile 48 is supported on the panel section 26 cutout portions 56 and 58 are located in juxtaposed relation to the truss 30 and the truss 34, respectively. The stile 48 may be secured to the inner surface of the panel section 26 through the use of any suitable conventional securing means such as welding, through the use of thread fasteners, etc. Adjacent each of the ends of the stile 48, there is preferably provided fastening means 60, only one of which is visible in the drawings. The fastening means 60 are employed for a purpose yet to be described. The stiles S and 52 are similarly provided with fastening means. as exemplified for example by numeral 62 which is visible in FIG. 2 of the drawings.

Turning again to FIG. 2 of the drawings, as depicted therein the adjacent panel sections 24 and 26 are interconnected by means of hinge means 64. The latter hinge means 64 comprise a first leaf hinge portion 66 one end of which terminates in a barrel portion 70 and a second leaf hinge portion 68 one end of which terminates in a barrel portion 72 such as to be cooperable with the barrel portion 70 in the manner illustrated in FIG. 2 of the drawings. The barrel portions 70 and 72 are maintained in engagement by means of a hinge pin 74. The leaf hinge portion 66 and 68 are fastened to the stiles 48 and 50, respectively, by means of fasteners 76 which are received in the fastening means 60 and 62, respectively. In accord with the illustrated embodiment of the invention, washers 78 are preferably interposed between the head of the fasteners 76 and the outer surface of the hinge portions 66 and 68.

Turning now to a consideration of the mode of operation of the aforedescribed radial overlapping joint construction employed in the door 10, it can be seen with reference to FIG. 5 of the drawings that as the door moves between its opened and closed positions. the panel sections 24, 26 and 28 are caused to pivot relative to each other. During this pivotable movement a lip portion 36 slidably seated in the shoulder portion 38 slides relative to the latter. The panel sections 24 and 26 remain interconnected by vitrue of the fact that the leaf hinge portion 66 is fastened to the stile 48 which in turn is secured to the panel section 26 while the leaf hinge portion 68 is fastened to the stile 50 which in turn is secured to the panel section 24. The rail portions 44 and 48 function as stop means whereby as the door 10 moves between open and closed positions, depending on which direction the door 10 is moving in one or the other of the rail portions 44 and 48 interacts with the face of the corresponding hinge portion 66 or 68 to limit the pivot action of the respective adjacent panel sections 24 and 26. it will be noted that inasmuch as the lip portion 36 is positioned in the shoulder portion 38 along the entire length of the edge portions of the adjacent panel sections, no opening exists there between into which a person could catch his fingers. Similarly, the positioning of the lip portion 36 within the shoulder portion 38 establishes a tight construction there between which restricts the passage there through of wind. water and light.

Although only one embodiment of a door constructed in accordance with the present invention has been shown in the drawings and described hereinabove, it is to be understood that modifications in the construction thereof may be made thereto by those skilled in the art without departing from the essence of the invention. In this connection, some of the modifica tions which can be made in the door 10 have been a]- luded to hereinabove while others will become readily apparent to those skilled in the art when exposed to the present description and illustration of the construction of the door 10.

Thus it can be seen that the present invention provides a novel and improved door of the type comprising a plurality of panel sections and embodying ajoint construction operable for connecting the adjacent panel sections thereof together. Moreover, in accord with the present invention a door has been provided wherein a radial overlapping joint construction is employed which eliminates the possibilty of a person pinching his fingers while closing the door. The door of the present invention is operable also to restrict the passage therethrough of wind. water and light. and is capable of maintaining a mechanical configuration compatible with the radial relationship of the joint under operating conditions. Furthermore, in accord with the present invention there has been provided a door having a radial overlapping joint construction which provides all of the advantages of the conventional continuous curl hinge door yet facilitates much easier assembly and provides better performance than the conventional continuous curl hinge door. Finally, a door embodying a plurality of adjacent panel sections interconnected by means of a radial overlapping joint construction has been provided in accord with the present invention which is relatively inexpensive to manufacture and assemble yet is sufficiently durable so as to be capable of providing a relatively long operating life.

Having thus described the invention, I claim:

1. A metal door of sectional construction comprising:

a. at least one continous, integrally formed sheet metal panel section having a body portion with edge portions extending along each of the horizontal edges thereof, one of said edge portions being a roll form including a lip portion of arcuate cross section projecting therefrom in a plane spaced from the plane of said body portion and defining a concave recess in the inner surface thereof, said one edge portion including a rail portion on the inner end of said arcuate lip portion projecting away therefrom;

b. at least one other continuous, integrally formed sheet metal panel section having a body portion with edge portions extending along each of the horizontal edges thereof. one of said edge portions being formed with a cooperating shoulder portion of arcuate configuration spaced from the plane of said body portion thereof and cooperatively configured to slidably seat the outer surface of said arcuate lip portion of said one panel section, said shoulder portion and said lip portion being slidable relative to each other during movement of the door between open and closed positions, said one edge portion including a rail portion on the inner end of said shoulder portion projecting away therefrom; and

c. hinge means including a first leaf hinge portion se cured to said rail portion of said one panel section and a second leaf hinge portion secured to said rail portion of said other panel section. said hinge means further including a barrel positioned within said concave recess provided by said lip portion when said panels sections are pivoted relative to each other. said lip portion and said shoulder portion slide relative to each other and said hinge portions pivot relative to each other.

2. The metal door as set forth in claim 1 further comprising first stile means supported on said one panel section perpendicular to the major axis of said body portion thereof and having one end thereof secured to said rail portion.

3. The metal door as set forth in claim 2 comprising second stile means supported on said other panel section perpendicular to the major axis of said body portion thereof and having one end thereof secured to said rail portion.

4. The metal door as set forth in claim 3 wherein said first leaf hinge portion is fastened to said one end of said first stile means and said second leaf hinge portion is fastened to said one end of said second stile means. with said rail portions being disposed between said ends of said stile means and said hinge leaf portions.

5. The metal door as set forth in claim 1 wherein said rail portions of said one and other panel sections extend in a common plane parallel to the plane of said body portions thereof in the closed position of said door.

6. The metal door as set forth in claim 1 wherein said concave recess faces away from said plane of said body portion of said one panel section.

7. A metal door of sectional construction comprising:

a. at least one continuous, integrally formed sheet metal panel section having a body portion with edge portions extending along each of the horizontal edges thereof, one of said edge portions being a roll form including a lip portion of arcuate cross section projecting therefrom in a plane spaced from the plane of said body portion and defining a concave recess in the inner surface thereof, facing away from said plane of said body portion, and said one edge portion including a rail portion projecting away from the inner end of said lip portion;

b. at least one other continuous, integrally formed sheet metal panel section having a body portion with edge portions extending along each of the horizontal edges thereof, one of said edge portions being formed with a cooperating shoulder portion of arcuate configuration spaced from the plane of said body portion thereof and cooperatively configured to slidably seat the outer surface of said arcuate lip portion of said one panel section and said one edge portion including a rail portion projecting away from the inner end of said shoulder portion, said shoulder portion and said lip portion being slidable relative to each other during movement of said door between a closed and open position. and said rail portions of said one and other panel sections extending in a common plane parallel to the plane of said body portions thereof in said closed position; and

c. hinge means including a first leaf hinge portion secured to said rail portion of said one panel section. a second leaf hinge portion secured to said rail portion of said other panel section, and a barrel positioned within said concave recess provided by said lip portion whereby when said panel sections are pivoted relative to each other, said lip portion and said shoulder portion slide relative to each other and said hinge portions pivot relative to each other.

8. The metal door as set forth in claim 7 further comprising first stile means supported on said one panel section perpendicular to the major axis of said body portion thereof and having one end thereof secured to said rail portion.

9. The metal door as set forth in claim 8 further comprising second stile means supported on said other panel section perpendicular to the major axis of said body portion thereof and having one end thereof secured to said rail portion.

l l I 

1. A metal door of sectional construction comprising: a. at least one continous, integrally formed sheet metal panel section having a body portion with edge portions extending along each of the horizontal edges thereof, one of said edge portions being a roll form inclUding a lip portion of arcuate cross section projecting therefrom in a plane spaced from the plane of said body portion and defining a concave recess in the inner surface thereof, said one edge portion including a rail portion on the inner end of said arcuate lip portion projecting away therefrom; b. at least one other continuous, integrally formed sheet metal panel section having a body portion with edge portions extending along each of the horizontal edges thereof, one of said edge portions being formed with a cooperating shoulder portion of arcuate configuration spaced from the plane of said body portion thereof and cooperatively configured to slidably seat the outer surface of said arcuate lip portion of said one panel section, said shoulder portion and said lip portion being slidable relative to each other during movement of the door between open and closed positions, said one edge portion including a rail portion on the inner end of said shoulder portion projecting away therefrom; and c. hinge means including a first leaf hinge portion secured to said rail portion of said one panel section and a second leaf hinge portion secured to said rail portion of said other panel section, said hinge means further including a barrel positioned within said concave recess provided by said lip portion when said panels sections are pivoted relative to each other, said lip portion and said shoulder portion slide relative to each other and said hinge portions pivot relative to each other.
 2. The metal door as set forth in claim 1 further comprising first stile means supported on said one panel section perpendicular to the major axis of said body portion thereof and having one end thereof secured to said rail portion.
 3. The metal door as set forth in claim 2 comprising second stile means supported on said other panel section perpendicular to the major axis of said body portion thereof and having one end thereof secured to said rail portion.
 4. The metal door as set forth in claim 3 wherein said first leaf hinge portion is fastened to said one end of said first stile means and said second leaf hinge portion is fastened to said one end of said second stile means, with said rail portions being disposed between said ends of said stile means and said hinge leaf portions.
 5. The metal door as set forth in claim 1 wherein said rail portions of said one and other panel sections extend in a common plane parallel to the plane of said body portions thereof in the closed position of said door.
 6. The metal door as set forth in claim 1 wherein said concave recess faces away from said plane of said body portion of said one panel section.
 7. A metal door of sectional construction comprising: a. at least one continuous, integrally formed sheet metal panel section having a body portion with edge portions extending along each of the horizontal edges thereof, one of said edge portions being a roll form including a lip portion of arcuate cross section projecting therefrom in a plane spaced from the plane of said body portion and defining a concave recess in the inner surface thereof, facing away from said plane of said body portion, and said one edge portion including a rail portion projecting away from the inner end of said lip portion; b. at least one other continuous, integrally formed sheet metal panel section having a body portion with edge portions extending along each of the horizontal edges thereof, one of said edge portions being formed with a cooperating shoulder portion of arcuate configuration spaced from the plane of said body portion thereof and cooperatively configured to slidably seat the outer surface of said arcuate lip portion of said one panel section and said one edge portion including a rail portion projecting away from the inner end of said shoulder portion, said shoulder portion and said lip portion being slidable relative to each other during movement of said door between a closed and open position, and said rail portions of said one and other panel sections extending in a common plane parallel to the plane of said body portions thereof in said closed position; and c. hinge means including a first leaf hinge portion secured to said rail portion of said one panel section, a second leaf hinge portion secured to said rail portion of said other panel section, and a barrel positioned within said concave recess provided by said lip portion whereby when said panel sections are pivoted relative to each other, said lip portion and said shoulder portion slide relative to each other and said hinge portions pivot relative to each other.
 8. The metal door as set forth in claim 7 further comprising first stile means supported on said one panel section perpendicular to the major axis of said body portion thereof and having one end thereof secured to said rail portion.
 9. The metal door as set forth in claim 8 further comprising second stile means supported on said other panel section perpendicular to the major axis of said body portion thereof and having one end thereof secured to said rail portion. 